Morgana levels

Morgana levels (sometimes also known as Defeat the Morgana or Boss levels) are one of the four level types in Bubble Witch 2 Saga. Morgana levels are the fourth and last level type introduced in the game. They first appear in episode 2, Pumpkin Fields, with first level being level 21.

Morgana levels are the common level type in the game, making up 22.65% of all levels, with 428 total appearances out of the 1890 levels.

To win a morgana level, the player has to defeat all the morgana shields present on the level.
For every morgana level above 150, there are stages. On each stage, there's one morgana shield, and after you've destroyed it, you proceed to the next stage automatically. Number of stages varies, and is usually 3-5.
For every morgana level below 150, the screen doesn't scroll automatically to the next Morgana shield when one is destroyed.To move on to the next one, you must destroy bubbles in between.
Each morgana shield has a specific color. Morgana shields can be destroyed by shooting a bubble of that color on it. If the bubble is not the appropriate color and is shot at the Morgana shield, it will change the color to another color. Keep in mind, the new color is NOT random. This can be used to your advantage, and very helpful to beat the more difficult Morgana levels.The color rotation of the morgana shield follows this cycle (and keeps going round):
> [BLUE] > [PURPLE] > [RED] > [YELLOW] > [GREEN] >
A player also has to reach a certain score requirement (for one star). This is usually neglected, due to the fact that, if you complete the main level objective, you always have enough points for at least one star.